Home About Browse Search
Svenska


Mullhalt och kvävemineralisering i åkermark

Mattsson, Lennart (1999). Mullhalt och kvävemineralisering i åkermark. Technical Report. Uppsala: (NL, NJ) > Dept. of Soil Sciences > Div. of Soil Fertility and Plant Nutrition, Sveriges lantbruksuniversitet. Rapport / Sveriges lantbruksuniversitet, Institutionen för markvetenskap, Avd. för växtnäringslära ; 201
[Report]

[img]
Preview
PDF
1MB

Official URL: http://www-mv.slu.se/vaxtnaring/forsok/VNrapporter...

Abstract

In 300 field experiments the correlation between N yield in not N fertilized plots and the soil organic matter content was investigated. The amounts of N taken up in cereal grain yields and to a minor extent in oil seed yields were calcultated in experiments located all over Sweden and carried out during 1990-1998. For each percentage unit increase in soil organic matter the grain N uptake increased by 2,5 kg per ha. Grouping the experiments by regions gave very similar results between the regions. In clay soils the correlation was somewhat stronger or slightly more than 3 kg N per percentage unit soil organic matter. If these results are calculated as N fertilizer they correspond to a difference of 7 kg N on a light soil and 10 kg per ha on a clay soil.

Authors/Creators:Mattsson, Lennart
Title:Mullhalt och kvävemineralisering i åkermark
Series/Journal:Rapport / Sveriges lantbruksuniversitet, Institutionen för markvetenskap, Avd. för växtnäringslära (0348-3541)
Year of publishing :1999
Number:201
Number of Pages:17
Place of Publication:Uppsala
Publisher:Inst. för markvetenskap, Sveriges lantbruksuniversitet
ISSN:0348-3541
Language:Swedish
Publication Type:Report
Refereed:No
Full Text Status:Public
Subjects:Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Plant production
Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Soil science
Keywords:Kvävegödsling, Fältförsök
URN:NBN:urn:nbn:se:slu:epsilon-1-24
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-1-24
ID Code:3229
Department:(NL, NJ) > Dept. of Soil Sciences > Div. of Soil Fertility and Plant Nutrition
Deposited By: Lennart Mattsson
Deposited On:25 Apr 2008 00:00
Metadata Last Modified:02 Dec 2014 10:19

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits